BIOL 1412 Midterm 3 Exam Questions with Correct Answers Latest Update 2025-2026
parthogenesis - Answers development of an unfertilized egg
regeneration - Answers complete organism formed from fragment
sertoli cells - Answers cells found within the seminiferous tubules that provide metabolic
support for the spermatids
interstitial/leydig cells - Answers produce testosterone into seminiferous tubules
external fertilization - Answers process in which eggs are fertilized outside the female's body,
often in water
hermaphrodites - Answers organisms that contain both female and male sex organs.
reproduction decoupling - Answers time between reproductive steps
semelparity - Answers only reproduce once
iteroparity - Answers capable of 2+ periods of reproduction
complete cleavage - Answers cytoplasm completely divided
incomplete cleavage - Answers no complete division, yolk inhibits it
radial cleavage - Answers blastocoel formed, complete cleavage
spiral cleavage - Answers new cells rotated slightly, complete cleavage
mosaic development - Answers Pattern of animal embryonic development in which each
blastomere contributes a specific part of the adult body.
regulative development - Answers A pattern of animal embryonic development in which the
fates of the first blastomeres are not absolutely fixed. loss of cells doesn't affect embryo
epiblast - Answers the outermost layer of an embryo before it differentiates into ectoderm and
mesoderm. gives rise to embryo proper
hypoblast - Answers forms yolk sac
syncytium - Answers nuclei divide without a membrane surrounding each. in insects
sea birds salt excretion method - Answers nostrils
sea turtles salt excretion method - Answers tears, tear ducts
ocean lizard salt excretion method - Answers nostril
parthogenesis - Answers development of an unfertilized egg
regeneration - Answers complete organism formed from fragment
sertoli cells - Answers cells found within the seminiferous tubules that provide metabolic
support for the spermatids
interstitial/leydig cells - Answers produce testosterone into seminiferous tubules
external fertilization - Answers process in which eggs are fertilized outside the female's body,
often in water
hermaphrodites - Answers organisms that contain both female and male sex organs.
reproduction decoupling - Answers time between reproductive steps
semelparity - Answers only reproduce once
iteroparity - Answers capable of 2+ periods of reproduction
complete cleavage - Answers cytoplasm completely divided
incomplete cleavage - Answers no complete division, yolk inhibits it
radial cleavage - Answers blastocoel formed, complete cleavage
spiral cleavage - Answers new cells rotated slightly, complete cleavage
mosaic development - Answers Pattern of animal embryonic development in which each
blastomere contributes a specific part of the adult body.
regulative development - Answers A pattern of animal embryonic development in which the
fates of the first blastomeres are not absolutely fixed. loss of cells doesn't affect embryo
epiblast - Answers the outermost layer of an embryo before it differentiates into ectoderm and
mesoderm. gives rise to embryo proper
hypoblast - Answers forms yolk sac
syncytium - Answers nuclei divide without a membrane surrounding each. in insects
sea birds salt excretion method - Answers nostrils
sea turtles salt excretion method - Answers tears, tear ducts
ocean lizard salt excretion method - Answers nostril
